Track Initialization Sensitivity in Clutter.
Abstract
Sensitivity to track initialization error is quantified as a function of clutter density for the nearest neighbor assignment function (NNAF). Quality of track initialization is thereby related to assignment accuracy. Two statistical distributions of track initialization error are derived under idealized hypotheses representing excellent and poor performance of the NNAF in clutter. A track initialization error region is obtained by constraining the mean initializing error under the excellent NNAF performance hypothesis to have (lower tail) significance level at most a under the poor NNAF performance hypothesis. The initialization sensitivity region is derived for general nonlinear state equations and for measurement equations with additive Gaussian noise. Examples using constant velocity models are given. The methodology is used to define a family of curves called initialization clutter envelope (ICE) curves. ICE curves plot maximum clutter density against maximum initialization error and are useful for estimating the maximum clutter density at which successful tracking can occur for a given initialization error. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 14, 1995
- Accession Number
- ADA296160
Entities
People
- Roy L. Streit
Organizations
- Naval Undersea Warfare Center